1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 ad1816a.c - lowlevel code for Analog Devices AD1816A chip. 4 Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it> 5 6 */ 7 8 #include <linux/delay.h> 9 #include <linux/init.h> 10 #include <linux/interrupt.h> 11 #include <linux/slab.h> 12 #include <linux/ioport.h> 13 #include <linux/io.h> 14 #include <sound/core.h> 15 #include <sound/tlv.h> 16 #include <sound/ad1816a.h> 17 18 #include <asm/dma.h> 19 20 static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip) 21 { 22 int timeout; 23 24 for (timeout = 1000; timeout-- > 0; udelay(10)) 25 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY) 26 return 0; 27 28 snd_printk(KERN_WARNING "chip busy.\n"); 29 return -EBUSY; 30 } 31 32 static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg) 33 { 34 snd_ad1816a_busy_wait(chip); 35 return inb(AD1816A_REG(reg)); 36 } 37 38 static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg, 39 unsigned char value) 40 { 41 snd_ad1816a_busy_wait(chip); 42 outb(value, AD1816A_REG(reg)); 43 } 44 45 static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg, 46 unsigned char mask, unsigned char value) 47 { 48 snd_ad1816a_out(chip, reg, 49 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask)); 50 } 51 52 static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg) 53 { 54 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 55 return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) | 56 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8); 57 } 58 59 static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg, 60 unsigned short value) 61 { 62 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 63 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff); 64 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff); 65 } 66 67 static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg, 68 unsigned short mask, unsigned short value) 69 { 70 snd_ad1816a_write(chip, reg, 71 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask)); 72 } 73 74 75 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip, 76 snd_pcm_format_t format, 77 int channels) 78 { 79 unsigned char retval = AD1816A_FMT_LINEAR_8; 80 81 switch (format) { 82 case SNDRV_PCM_FORMAT_MU_LAW: 83 retval = AD1816A_FMT_ULAW_8; 84 break; 85 case SNDRV_PCM_FORMAT_A_LAW: 86 retval = AD1816A_FMT_ALAW_8; 87 break; 88 case SNDRV_PCM_FORMAT_S16_LE: 89 retval = AD1816A_FMT_LINEAR_16_LIT; 90 break; 91 case SNDRV_PCM_FORMAT_S16_BE: 92 retval = AD1816A_FMT_LINEAR_16_BIG; 93 } 94 return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval; 95 } 96 97 static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode) 98 { 99 unsigned long flags; 100 101 spin_lock_irqsave(&chip->lock, flags); 102 103 if (chip->mode & mode) { 104 spin_unlock_irqrestore(&chip->lock, flags); 105 return -EAGAIN; 106 } 107 108 switch ((mode &= AD1816A_MODE_OPEN)) { 109 case AD1816A_MODE_PLAYBACK: 110 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 111 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 112 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 113 AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff); 114 break; 115 case AD1816A_MODE_CAPTURE: 116 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 117 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 118 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 119 AD1816A_CAPTURE_IRQ_ENABLE, 0xffff); 120 break; 121 case AD1816A_MODE_TIMER: 122 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 123 AD1816A_TIMER_IRQ_PENDING, 0x00); 124 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 125 AD1816A_TIMER_IRQ_ENABLE, 0xffff); 126 } 127 chip->mode |= mode; 128 129 spin_unlock_irqrestore(&chip->lock, flags); 130 return 0; 131 } 132 133 static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode) 134 { 135 unsigned long flags; 136 137 spin_lock_irqsave(&chip->lock, flags); 138 139 switch ((mode &= AD1816A_MODE_OPEN)) { 140 case AD1816A_MODE_PLAYBACK: 141 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 142 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 143 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 144 AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000); 145 break; 146 case AD1816A_MODE_CAPTURE: 147 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 148 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 149 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 150 AD1816A_CAPTURE_IRQ_ENABLE, 0x0000); 151 break; 152 case AD1816A_MODE_TIMER: 153 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 154 AD1816A_TIMER_IRQ_PENDING, 0x00); 155 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 156 AD1816A_TIMER_IRQ_ENABLE, 0x0000); 157 } 158 if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN)) 159 chip->mode = 0; 160 161 spin_unlock_irqrestore(&chip->lock, flags); 162 } 163 164 165 static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what, 166 int channel, int cmd, int iscapture) 167 { 168 int error = 0; 169 170 switch (cmd) { 171 case SNDRV_PCM_TRIGGER_START: 172 case SNDRV_PCM_TRIGGER_STOP: 173 spin_lock(&chip->lock); 174 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00; 175 /* if (what & AD1816A_PLAYBACK_ENABLE) */ 176 /* That is not valid, because playback and capture enable 177 * are the same bit pattern, just to different addresses 178 */ 179 if (! iscapture) 180 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 181 AD1816A_PLAYBACK_ENABLE, cmd); 182 else 183 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 184 AD1816A_CAPTURE_ENABLE, cmd); 185 spin_unlock(&chip->lock); 186 break; 187 default: 188 snd_printk(KERN_WARNING "invalid trigger mode 0x%x.\n", what); 189 error = -EINVAL; 190 } 191 192 return error; 193 } 194 195 static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int cmd) 196 { 197 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 198 return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE, 199 SNDRV_PCM_STREAM_PLAYBACK, cmd, 0); 200 } 201 202 static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd) 203 { 204 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 205 return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE, 206 SNDRV_PCM_STREAM_CAPTURE, cmd, 1); 207 } 208 209 static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream) 210 { 211 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 212 unsigned long flags; 213 struct snd_pcm_runtime *runtime = substream->runtime; 214 unsigned int size, rate; 215 216 spin_lock_irqsave(&chip->lock, flags); 217 218 chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 219 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 220 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 221 222 snd_dma_program(chip->dma1, runtime->dma_addr, size, 223 DMA_MODE_WRITE | DMA_AUTOINIT); 224 225 rate = runtime->rate; 226 if (chip->clock_freq) 227 rate = (rate * 33000) / chip->clock_freq; 228 snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate); 229 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 230 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 231 snd_ad1816a_get_format(chip, runtime->format, 232 runtime->channels)); 233 234 snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT, 235 snd_pcm_lib_period_bytes(substream) / 4 - 1); 236 237 spin_unlock_irqrestore(&chip->lock, flags); 238 return 0; 239 } 240 241 static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream) 242 { 243 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 244 unsigned long flags; 245 struct snd_pcm_runtime *runtime = substream->runtime; 246 unsigned int size, rate; 247 248 spin_lock_irqsave(&chip->lock, flags); 249 250 chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 251 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 252 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 253 254 snd_dma_program(chip->dma2, runtime->dma_addr, size, 255 DMA_MODE_READ | DMA_AUTOINIT); 256 257 rate = runtime->rate; 258 if (chip->clock_freq) 259 rate = (rate * 33000) / chip->clock_freq; 260 snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate); 261 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 262 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 263 snd_ad1816a_get_format(chip, runtime->format, 264 runtime->channels)); 265 266 snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT, 267 snd_pcm_lib_period_bytes(substream) / 4 - 1); 268 269 spin_unlock_irqrestore(&chip->lock, flags); 270 return 0; 271 } 272 273 274 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(struct snd_pcm_substream *substream) 275 { 276 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 277 size_t ptr; 278 if (!(chip->mode & AD1816A_MODE_PLAYBACK)) 279 return 0; 280 ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size); 281 return bytes_to_frames(substream->runtime, ptr); 282 } 283 284 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(struct snd_pcm_substream *substream) 285 { 286 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 287 size_t ptr; 288 if (!(chip->mode & AD1816A_MODE_CAPTURE)) 289 return 0; 290 ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size); 291 return bytes_to_frames(substream->runtime, ptr); 292 } 293 294 295 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id) 296 { 297 struct snd_ad1816a *chip = dev_id; 298 unsigned char status; 299 300 spin_lock(&chip->lock); 301 status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS); 302 spin_unlock(&chip->lock); 303 304 if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream) 305 snd_pcm_period_elapsed(chip->playback_substream); 306 307 if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream) 308 snd_pcm_period_elapsed(chip->capture_substream); 309 310 if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer) 311 snd_timer_interrupt(chip->timer, chip->timer->sticks); 312 313 spin_lock(&chip->lock); 314 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 315 spin_unlock(&chip->lock); 316 return IRQ_HANDLED; 317 } 318 319 320 static const struct snd_pcm_hardware snd_ad1816a_playback = { 321 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 322 SNDRV_PCM_INFO_MMAP_VALID), 323 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 324 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 325 SNDRV_PCM_FMTBIT_S16_BE), 326 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 327 .rate_min = 4000, 328 .rate_max = 55200, 329 .channels_min = 1, 330 .channels_max = 2, 331 .buffer_bytes_max = (128*1024), 332 .period_bytes_min = 64, 333 .period_bytes_max = (128*1024), 334 .periods_min = 1, 335 .periods_max = 1024, 336 .fifo_size = 0, 337 }; 338 339 static const struct snd_pcm_hardware snd_ad1816a_capture = { 340 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 341 SNDRV_PCM_INFO_MMAP_VALID), 342 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 343 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 344 SNDRV_PCM_FMTBIT_S16_BE), 345 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 346 .rate_min = 4000, 347 .rate_max = 55200, 348 .channels_min = 1, 349 .channels_max = 2, 350 .buffer_bytes_max = (128*1024), 351 .period_bytes_min = 64, 352 .period_bytes_max = (128*1024), 353 .periods_min = 1, 354 .periods_max = 1024, 355 .fifo_size = 0, 356 }; 357 358 static int snd_ad1816a_timer_close(struct snd_timer *timer) 359 { 360 struct snd_ad1816a *chip = snd_timer_chip(timer); 361 snd_ad1816a_close(chip, AD1816A_MODE_TIMER); 362 return 0; 363 } 364 365 static int snd_ad1816a_timer_open(struct snd_timer *timer) 366 { 367 struct snd_ad1816a *chip = snd_timer_chip(timer); 368 snd_ad1816a_open(chip, AD1816A_MODE_TIMER); 369 return 0; 370 } 371 372 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer) 373 { 374 if (snd_BUG_ON(!timer)) 375 return 0; 376 377 return 10000; 378 } 379 380 static int snd_ad1816a_timer_start(struct snd_timer *timer) 381 { 382 unsigned short bits; 383 unsigned long flags; 384 struct snd_ad1816a *chip = snd_timer_chip(timer); 385 spin_lock_irqsave(&chip->lock, flags); 386 bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE); 387 388 if (!(bits & AD1816A_TIMER_ENABLE)) { 389 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT, 390 timer->sticks & 0xffff); 391 392 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 393 AD1816A_TIMER_ENABLE, 0xffff); 394 } 395 spin_unlock_irqrestore(&chip->lock, flags); 396 return 0; 397 } 398 399 static int snd_ad1816a_timer_stop(struct snd_timer *timer) 400 { 401 unsigned long flags; 402 struct snd_ad1816a *chip = snd_timer_chip(timer); 403 spin_lock_irqsave(&chip->lock, flags); 404 405 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 406 AD1816A_TIMER_ENABLE, 0x0000); 407 408 spin_unlock_irqrestore(&chip->lock, flags); 409 return 0; 410 } 411 412 static const struct snd_timer_hardware snd_ad1816a_timer_table = { 413 .flags = SNDRV_TIMER_HW_AUTO, 414 .resolution = 10000, 415 .ticks = 65535, 416 .open = snd_ad1816a_timer_open, 417 .close = snd_ad1816a_timer_close, 418 .c_resolution = snd_ad1816a_timer_resolution, 419 .start = snd_ad1816a_timer_start, 420 .stop = snd_ad1816a_timer_stop, 421 }; 422 423 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream) 424 { 425 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 426 struct snd_pcm_runtime *runtime = substream->runtime; 427 int error; 428 429 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0) 430 return error; 431 runtime->hw = snd_ad1816a_playback; 432 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max); 433 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max); 434 chip->playback_substream = substream; 435 return 0; 436 } 437 438 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream) 439 { 440 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 441 struct snd_pcm_runtime *runtime = substream->runtime; 442 int error; 443 444 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0) 445 return error; 446 runtime->hw = snd_ad1816a_capture; 447 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max); 448 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max); 449 chip->capture_substream = substream; 450 return 0; 451 } 452 453 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream) 454 { 455 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 456 457 chip->playback_substream = NULL; 458 snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK); 459 return 0; 460 } 461 462 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream) 463 { 464 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 465 466 chip->capture_substream = NULL; 467 snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE); 468 return 0; 469 } 470 471 472 static void snd_ad1816a_init(struct snd_ad1816a *chip) 473 { 474 unsigned long flags; 475 476 spin_lock_irqsave(&chip->lock, flags); 477 478 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 479 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 480 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 481 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 482 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 483 snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000); 484 snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG, 485 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff); 486 snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000); 487 snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000); 488 489 spin_unlock_irqrestore(&chip->lock, flags); 490 } 491 492 #ifdef CONFIG_PM 493 void snd_ad1816a_suspend(struct snd_ad1816a *chip) 494 { 495 int reg; 496 unsigned long flags; 497 498 spin_lock_irqsave(&chip->lock, flags); 499 for (reg = 0; reg < 48; reg++) 500 chip->image[reg] = snd_ad1816a_read(chip, reg); 501 spin_unlock_irqrestore(&chip->lock, flags); 502 } 503 504 void snd_ad1816a_resume(struct snd_ad1816a *chip) 505 { 506 int reg; 507 unsigned long flags; 508 509 snd_ad1816a_init(chip); 510 spin_lock_irqsave(&chip->lock, flags); 511 for (reg = 0; reg < 48; reg++) 512 snd_ad1816a_write(chip, reg, chip->image[reg]); 513 spin_unlock_irqrestore(&chip->lock, flags); 514 } 515 #endif 516 517 static int snd_ad1816a_probe(struct snd_ad1816a *chip) 518 { 519 unsigned long flags; 520 521 spin_lock_irqsave(&chip->lock, flags); 522 523 switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) { 524 case 0: 525 chip->hardware = AD1816A_HW_AD1815; 526 break; 527 case 1: 528 chip->hardware = AD1816A_HW_AD18MAX10; 529 break; 530 case 3: 531 chip->hardware = AD1816A_HW_AD1816A; 532 break; 533 default: 534 chip->hardware = AD1816A_HW_AUTO; 535 } 536 537 spin_unlock_irqrestore(&chip->lock, flags); 538 return 0; 539 } 540 541 static int snd_ad1816a_free(struct snd_ad1816a *chip) 542 { 543 release_and_free_resource(chip->res_port); 544 if (chip->irq >= 0) 545 free_irq(chip->irq, (void *) chip); 546 if (chip->dma1 >= 0) { 547 snd_dma_disable(chip->dma1); 548 free_dma(chip->dma1); 549 } 550 if (chip->dma2 >= 0) { 551 snd_dma_disable(chip->dma2); 552 free_dma(chip->dma2); 553 } 554 return 0; 555 } 556 557 static int snd_ad1816a_dev_free(struct snd_device *device) 558 { 559 struct snd_ad1816a *chip = device->device_data; 560 return snd_ad1816a_free(chip); 561 } 562 563 static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip) 564 { 565 switch (chip->hardware) { 566 case AD1816A_HW_AD1816A: return "AD1816A"; 567 case AD1816A_HW_AD1815: return "AD1815"; 568 case AD1816A_HW_AD18MAX10: return "AD18max10"; 569 default: 570 snd_printk(KERN_WARNING "Unknown chip version %d:%d.\n", 571 chip->version, chip->hardware); 572 return "AD1816A - unknown"; 573 } 574 } 575 576 int snd_ad1816a_create(struct snd_card *card, 577 unsigned long port, int irq, int dma1, int dma2, 578 struct snd_ad1816a *chip) 579 { 580 static const struct snd_device_ops ops = { 581 .dev_free = snd_ad1816a_dev_free, 582 }; 583 int error; 584 585 chip->irq = -1; 586 chip->dma1 = -1; 587 chip->dma2 = -1; 588 589 if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) { 590 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port); 591 snd_ad1816a_free(chip); 592 return -EBUSY; 593 } 594 if (request_irq(irq, snd_ad1816a_interrupt, 0, "AD1816A", (void *) chip)) { 595 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq); 596 snd_ad1816a_free(chip); 597 return -EBUSY; 598 } 599 chip->irq = irq; 600 card->sync_irq = chip->irq; 601 if (request_dma(dma1, "AD1816A - 1")) { 602 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1); 603 snd_ad1816a_free(chip); 604 return -EBUSY; 605 } 606 chip->dma1 = dma1; 607 if (request_dma(dma2, "AD1816A - 2")) { 608 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2); 609 snd_ad1816a_free(chip); 610 return -EBUSY; 611 } 612 chip->dma2 = dma2; 613 614 chip->card = card; 615 chip->port = port; 616 spin_lock_init(&chip->lock); 617 618 if ((error = snd_ad1816a_probe(chip))) { 619 snd_ad1816a_free(chip); 620 return error; 621 } 622 623 snd_ad1816a_init(chip); 624 625 /* Register device */ 626 if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 627 snd_ad1816a_free(chip); 628 return error; 629 } 630 631 return 0; 632 } 633 634 static const struct snd_pcm_ops snd_ad1816a_playback_ops = { 635 .open = snd_ad1816a_playback_open, 636 .close = snd_ad1816a_playback_close, 637 .prepare = snd_ad1816a_playback_prepare, 638 .trigger = snd_ad1816a_playback_trigger, 639 .pointer = snd_ad1816a_playback_pointer, 640 }; 641 642 static const struct snd_pcm_ops snd_ad1816a_capture_ops = { 643 .open = snd_ad1816a_capture_open, 644 .close = snd_ad1816a_capture_close, 645 .prepare = snd_ad1816a_capture_prepare, 646 .trigger = snd_ad1816a_capture_trigger, 647 .pointer = snd_ad1816a_capture_pointer, 648 }; 649 650 int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device) 651 { 652 int error; 653 struct snd_pcm *pcm; 654 655 if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm))) 656 return error; 657 658 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops); 659 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops); 660 661 pcm->private_data = chip; 662 pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0; 663 664 strcpy(pcm->name, snd_ad1816a_chip_id(chip)); 665 snd_ad1816a_init(chip); 666 667 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, chip->card->dev, 668 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024); 669 670 chip->pcm = pcm; 671 return 0; 672 } 673 674 int snd_ad1816a_timer(struct snd_ad1816a *chip, int device) 675 { 676 struct snd_timer *timer; 677 struct snd_timer_id tid; 678 int error; 679 680 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 681 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 682 tid.card = chip->card->number; 683 tid.device = device; 684 tid.subdevice = 0; 685 if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0) 686 return error; 687 strcpy(timer->name, snd_ad1816a_chip_id(chip)); 688 timer->private_data = chip; 689 chip->timer = timer; 690 timer->hw = snd_ad1816a_timer_table; 691 return 0; 692 } 693 694 /* 695 * 696 */ 697 698 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 699 { 700 static const char * const texts[8] = { 701 "Line", "Mix", "CD", "Synth", "Video", 702 "Mic", "Phone", 703 }; 704 705 return snd_ctl_enum_info(uinfo, 2, 7, texts); 706 } 707 708 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 709 { 710 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 711 unsigned long flags; 712 unsigned short val; 713 714 spin_lock_irqsave(&chip->lock, flags); 715 val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL); 716 spin_unlock_irqrestore(&chip->lock, flags); 717 ucontrol->value.enumerated.item[0] = (val >> 12) & 7; 718 ucontrol->value.enumerated.item[1] = (val >> 4) & 7; 719 return 0; 720 } 721 722 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 723 { 724 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 725 unsigned long flags; 726 unsigned short val; 727 int change; 728 729 if (ucontrol->value.enumerated.item[0] > 6 || 730 ucontrol->value.enumerated.item[1] > 6) 731 return -EINVAL; 732 val = (ucontrol->value.enumerated.item[0] << 12) | 733 (ucontrol->value.enumerated.item[1] << 4); 734 spin_lock_irqsave(&chip->lock, flags); 735 change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val; 736 snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val); 737 spin_unlock_irqrestore(&chip->lock, flags); 738 return change; 739 } 740 741 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv) \ 742 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 743 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 744 .name = xname, .info = snd_ad1816a_info_single, \ 745 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 746 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \ 747 .tlv = { .p = (xtlv) } } 748 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \ 749 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \ 750 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 751 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } 752 753 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 754 { 755 int mask = (kcontrol->private_value >> 16) & 0xff; 756 757 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 758 uinfo->count = 1; 759 uinfo->value.integer.min = 0; 760 uinfo->value.integer.max = mask; 761 return 0; 762 } 763 764 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 765 { 766 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 767 unsigned long flags; 768 int reg = kcontrol->private_value & 0xff; 769 int shift = (kcontrol->private_value >> 8) & 0xff; 770 int mask = (kcontrol->private_value >> 16) & 0xff; 771 int invert = (kcontrol->private_value >> 24) & 0xff; 772 773 spin_lock_irqsave(&chip->lock, flags); 774 ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask; 775 spin_unlock_irqrestore(&chip->lock, flags); 776 if (invert) 777 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 778 return 0; 779 } 780 781 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 782 { 783 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 784 unsigned long flags; 785 int reg = kcontrol->private_value & 0xff; 786 int shift = (kcontrol->private_value >> 8) & 0xff; 787 int mask = (kcontrol->private_value >> 16) & 0xff; 788 int invert = (kcontrol->private_value >> 24) & 0xff; 789 int change; 790 unsigned short old_val, val; 791 792 val = (ucontrol->value.integer.value[0] & mask); 793 if (invert) 794 val = mask - val; 795 val <<= shift; 796 spin_lock_irqsave(&chip->lock, flags); 797 old_val = snd_ad1816a_read(chip, reg); 798 val = (old_val & ~(mask << shift)) | val; 799 change = val != old_val; 800 snd_ad1816a_write(chip, reg, val); 801 spin_unlock_irqrestore(&chip->lock, flags); 802 return change; 803 } 804 805 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \ 806 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 807 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 808 .name = xname, .info = snd_ad1816a_info_double, \ 809 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 810 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \ 811 .tlv = { .p = (xtlv) } } 812 813 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \ 814 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \ 815 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 816 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) } 817 818 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 819 { 820 int mask = (kcontrol->private_value >> 16) & 0xff; 821 822 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 823 uinfo->count = 2; 824 uinfo->value.integer.min = 0; 825 uinfo->value.integer.max = mask; 826 return 0; 827 } 828 829 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 830 { 831 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 832 unsigned long flags; 833 int reg = kcontrol->private_value & 0xff; 834 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 835 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 836 int mask = (kcontrol->private_value >> 16) & 0xff; 837 int invert = (kcontrol->private_value >> 24) & 0xff; 838 unsigned short val; 839 840 spin_lock_irqsave(&chip->lock, flags); 841 val = snd_ad1816a_read(chip, reg); 842 ucontrol->value.integer.value[0] = (val >> shift_left) & mask; 843 ucontrol->value.integer.value[1] = (val >> shift_right) & mask; 844 spin_unlock_irqrestore(&chip->lock, flags); 845 if (invert) { 846 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 847 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; 848 } 849 return 0; 850 } 851 852 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 853 { 854 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 855 unsigned long flags; 856 int reg = kcontrol->private_value & 0xff; 857 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 858 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 859 int mask = (kcontrol->private_value >> 16) & 0xff; 860 int invert = (kcontrol->private_value >> 24) & 0xff; 861 int change; 862 unsigned short old_val, val1, val2; 863 864 val1 = ucontrol->value.integer.value[0] & mask; 865 val2 = ucontrol->value.integer.value[1] & mask; 866 if (invert) { 867 val1 = mask - val1; 868 val2 = mask - val2; 869 } 870 val1 <<= shift_left; 871 val2 <<= shift_right; 872 spin_lock_irqsave(&chip->lock, flags); 873 old_val = snd_ad1816a_read(chip, reg); 874 val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2; 875 change = val1 != old_val; 876 snd_ad1816a_write(chip, reg, val1); 877 spin_unlock_irqrestore(&chip->lock, flags); 878 return change; 879 } 880 881 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0); 882 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0); 883 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0); 884 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0); 885 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0); 886 887 static const struct snd_kcontrol_new snd_ad1816a_controls[] = { 888 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1), 889 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1, 890 db_scale_5bit), 891 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1), 892 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1, 893 db_scale_6bit), 894 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1), 895 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1, 896 db_scale_5bit_12db_max), 897 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1), 898 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1, 899 db_scale_5bit_12db_max), 900 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1), 901 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1, 902 db_scale_5bit_12db_max), 903 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1), 904 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1, 905 db_scale_6bit), 906 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1), 907 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1, 908 db_scale_5bit_12db_max), 909 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0), 910 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1), 911 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1, 912 db_scale_5bit_12db_max), 913 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1), 914 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1, 915 db_scale_4bit), 916 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1), 917 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1, 918 db_scale_5bit), 919 { 920 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 921 .name = "Capture Source", 922 .info = snd_ad1816a_info_mux, 923 .get = snd_ad1816a_get_mux, 924 .put = snd_ad1816a_put_mux, 925 }, 926 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1), 927 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0, 928 db_scale_rec_gain), 929 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1), 930 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0), 931 }; 932 933 int snd_ad1816a_mixer(struct snd_ad1816a *chip) 934 { 935 struct snd_card *card; 936 unsigned int idx; 937 int err; 938 939 if (snd_BUG_ON(!chip || !chip->card)) 940 return -EINVAL; 941 942 card = chip->card; 943 944 strcpy(card->mixername, snd_ad1816a_chip_id(chip)); 945 946 for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) { 947 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0) 948 return err; 949 } 950 return 0; 951 } 952